By Jennie Buzaglo & Charlotte McIntyre There has been a presenter switch-up on BBC Breakfast as the show’s favourite, Sally Nugent, took time out from the programme. The delightful anchor, who is 52, usually keeps us company alongside co-host Jon Kay from Monday until Wednesday. But viewers were met with a new face during the recent episode (February 19) of the popular morning show. Jon, aged 54, was joined by Nina Warhurst, who rejoined BBC Breakfast just last month after a six month maternity leave following the birth of her third little champ. Upon return, Nina presented a special piece exp…